Tadam I've fix the link!

Tell me if that works!

Hurray!

That works great!

Merci!

Here the solution:

test-instances.capx

Ok so I guess I can waste my night to find another idea :D

Maybe I need to explain that I don't create these Srite, but they are spawned.

So, it's possible to pick these spawned sprites?

Hi!

I come back with my tetris-like (remember), now I got a problem with instances.

I create some sprites, then when four sprites are create I want destroy them. So I do that:

system - pick Sprite instance 0 : destroy Sprite
system - pick Sprite instance 1 : destroy Sprite
system - pick Sprite instance 2 : destroy Sprite
system - pick Sprite instance 3 : destroy Sprite

Ahah awesome, I really love the sprites, the gameplay was really cool too!

Yeah the first level was frustrating, but then you walk trough the end of the level and you understand and you smile.

Not slow on Chrome + Win7.

No bugs (actually).

Good job!

I can't play NEON, can't click on play, only credits works.

I use the latest version of Chrome.

Yup!

Some bugs:

If you press E to open a lot of time the doors overlapse the blocks, same with close button.

Some problems with collision between the hero and the blocks.

But you got a good idea, nice!

And tadam!

Everything works, finally just few events for doing that.

Here is the file, hope that can help.

tetris-like.capx

Merci Yann!

Press the spacebar to accelerate the fall of a sprite.

And now I can continue this tetris-like in a good way.

Hi all and thank you for your response.

I must admit that I'm lazy, that's why I use PlatformBehavior, but with the worries that implies I give up this idea.

With Ashley's explanations I realize it's not a good solution to base a simple game as Tetris on a complex system.

I realize that making a stepped movement way is a better solution, a better start.

Starting from scratch sometimes saves time ... I just lost more time trying to make the PlatformBehaviours set up my ideas than I will have wasted trying from scratch.

Anyways, I'll post the final solution here, as it benefits everyone, although Yann gives me the solution on a plate!

Why you don't try to solve your errors? Post here, someone can help you!

I got the hotspot on the bottom-left.

Turnng on pixel rounding works great to not have white padding when I try with 31.9px width/height, but not solve the problem of overlaping when I move on the left or right..